JPH0988397A - Safe lock device for hop-up door of cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safe lock device of simple configuration at a low cost, which can open freely any hop-up door of cabinet enclosing each of drawers in stages and hinders the other drawers from being drawn out when any one of them has been drawn out, and at the same time, hinders their hop-up doors from being opened. SOLUTION: A safe lock device concerned is equipped with a lock lever 7 to engage a hop-up door when one of thedrawers is drawn out and a motion restricting member 8 fixed to the side reinforcement plate 44 of the cabinet body 2 in such a way as confronting the lock lever 7. The motion restricting member 8 and lock lever 7 are arranged so as to be energized always in the opening direction by a spring 9 provided in a single piece construction. A detent member 46 to be engaged by one end of the lock lever 7 is fixed to an actuator rod 13 which is vertically installed on the cabinet body 2 in such a way as movable up and down, and thereby the actuator rod 13 is sunk. The lock lever 7 moves in the direction of being engaged by the motion restricting member 8 owing to the detent member 46 fixed to the actuator rod 13, and the other hop-up doors are set in detention.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety lock device for a flip-up door in a cabinet having a flip-up door that covers the front surfaces of a plurality of stages of drawers.

[0002]

2. Description of the Related Art Conventionally, a plurality of stages of drawers housed in a cabinet body so as to be able to be taken in and out and a front surface of each drawer are covered,
In addition, a pop-up door that can be stored in the cabinet body when opened, a safety locking mechanism that locks the remaining drawer at the storage position when any one drawer is pulled out, and the pop-up door at the drawer closed position A lock lever for locking, the lock lever being biased in a door locking direction by a spring member, and the safety locking mechanism having an operating rod vertically arranged in the cabinet body so as to be vertically movable. The operating rod moves the lock lever to a door release position when moving in a direction to unlock the drawer, and the lock lever when in a position to lock the drawer in the storage position. Is engaged with the lock lever so as to be movable between a door locking position and a door releasing position, and the cabinet body has an operation restricting member for locking the lock lever in the door locking position. Is provided It is, the actuating regulating member is biased to the lever holding position by a spring member, and,
A cabinet arranged so that when the flip-up door reaches the drawer closed position from the open position, the cabinet is arranged to be moved to the lever release position by the flip-up door. -120886) exists.

[0003]

However, in the above-described conventional safety locking mechanism for the flip-up door, the resin-made mounting member fixed (for example, screwed) to the side wall of the cabinet body is provided with a pin. A substantially central portion of the lock lever is rotatably supported by this pin. One end (left side) of the lock lever is formed with a claw portion capable of engaging with a receiving hole formed in the inner wall of the flip-up door, and the other end (right side) constitutes the safety locking mechanism. A bent portion that engages with an engagement hole formed in the operating rod is formed. Since the engaging hole of the operating rod is a long hole in the vertical direction, when the operating rod is in the drawer locking position, the bent portion of the lock lever can move up and down within the engaging hole, which locks the lock lever. The lever is movable between a door locking position and a door releasing position. The lower end of the bent portion of the lock lever is engaged with the upper end of the coil spring whose lower end is engaged with the operating rod, and the direction in which the pawl engages with the lock lever receiving hole of the flip-up door. The urging force (clockwise turning force) is applied to the.

Further, at the upper left portion of the mounting member, a projection piece bent toward the flip-up door is formed at the upper end, and a hanging piece detachable from the upper step portion of the lock lever is formed at the lower end. The central portion of the regulating member is rotatably supported. The operation restricting member is provided with a torsion spring that gives a biasing force (counterclockwise turning force) so that the protruding piece protrudes forward and the hanging piece engages with the lock lever. Although the hanging piece of the operation restricting member is engaged with the lock lever, it disengages from the lock lever for some reason and the door cannot be closed. Further, since the magnet for attracting the flip-up door is provided in the lower left part of the mounting member, the structure is complicated and the manufacturing is difficult, resulting in cost increase, and a large mounting space is required. There was a problem.

In view of these circumstances, the present invention avoids the complicated structure of the related art and moves the engagement / disengagement member provided on the actuating rod to cause the lock lever to resist the biasing force of the elastic spring piece. Even if the flip-up door is accidentally closed, the shape of the tip that first collides with the lock lever is inclined, so it is inserted while copying and deforms the door locking part. An object of the present invention is to provide a safety locking device for a flip-up door in a simple cabinet that does not exist.

[0006]

In order to solve the above-mentioned problems, the present invention employs the following technical means. In the invention according to claim 1, a plurality of stages of drawers stored in the cabinet body so as to be able to be taken in and out, a flip-up door which is provided so as to cover the front surface of each drawer and which can be stored in the cabinet body when opened. It comprises a safety lock that locks all the other drawers when one or more drawers are pulled out by opening one or more pop-up doors, and a safety locking device for the pop-up doors. In the stopper, a lock lever for locking the flip-up door by pulling out any one of the drawers, and an operation restricting member fixed to the side reinforcing plate of the cabinet body so as to face the lock lever. And
The operation restricting member includes an engaging and disengaging member that engages with the lock lever of the safety locking device by assembling and engaging the lock lever so as to always urge it in the opening direction by the elastic spring piece integrally provided. Fixed to an operating rod vertically installed on the cabinet body so as to be vertically movable, and the operating rod is provided with a pin guide and an engaging pin provided with an inclined groove provided on the operating rod when one of the drawers is pulled out. The operating rod is moved down by, and the lock lever is moved in a direction to be locked by the operation regulating member by the engagement / disengagement member attached to the operating rod, and the other lifting door is locked. did.

[0007] According to the second aspect of the present invention, the first aspect is provided.
The technical means of adopting a sloped portion so that the door can be inserted while following the shape of the lock lever tip of the invention described above is adopted.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention comprises a plurality of stages of drawers stored in a cabinet body so that the drawers can be taken in and out, and a flip-up door that covers the front surface of each drawer and that can be stored in the cabinet body when opened. When one or more flip-up doors are opened and one of the drawers is pulled out, a safety lock that locks all the other drawers in a closed position to prevent the other drawers from being pulled out, and the safety of the pop-up door The safety locking device includes a lock lever that locks the flip-up door by pulling out one of the drawers, and an elastic spring piece integrally cut and raised at a substantially middle portion. And a lock lever of the safety locking device, the lock member being assembled and engaged by an elastic spring piece so as to be constantly biased in the opening direction so as to face the lock lever. Engagement and disengagement Wood is vertically movably fixed to Tate設 been operating rod to said cabinet main body, said operating rod is
When any one of the drawers is pulled out, the operation lever is lowered by the operation of the pin guide having the inclined groove provided on the operation rod and the engaging pin, and the other drawers in which the flip-up door is opened are Cannot be pulled out with the engagement pin.

Further, the step portion of the engaging / disengaging member provided on the operating rod moves the lock lever against the elastic spring piece in the direction in which the locking lever is engaged with the operation restricting member to close the flip-up door. The open door is a safety lock for the door in a cabinet that is locked so that it cannot be opened. Also, when the flip-up door that is opened when the drawer is pulled out closes for some reason, the tip of the flip-up door touches the lock lever first It is a safety stop device that is tilted so that the tip of the door is inserted.

[0010]

An embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 is a perspective view showing an embodiment of a flip-up door type cabinet of the present invention, and FIG. 2 is a vertical sectional view of the present embodiment. The cabinet 1 has a cabinet body 2 whose front surface is open, Inside the cabinet body 2, a plurality of stages (three stages are shown in the present embodiment) of drawers 4 having an open front surface.
Is stored so that it can be pulled out. Further, the flip-up door 3 for closing the front surface of the drawer 4 can be housed in the housing portion 6 provided in the main body 2 corresponding to each drawer 4, and is pulled out to the outside of the housing portion 6. Moreover, the front surface of each drawer 4 can be covered by rotating the drawer 4 downward.

FIG. 3 is a front view showing the relationship with the lock provided with the safety locking device of this embodiment, FIG. 4 is an exploded perspective view of the main part of the safety locking device, and FIG. 5 is a line AA in FIG. FIG. 2 is a cross-sectional view showing the cabinet 1 on one side (left side in the figure) of the drawer 4.
An operating rod 13 having a safety locking device 12 is vertically installed inside the cabinet body 2 so as to be vertically movable. As shown in FIG. 4, an elastic plastic engaging piece 14 is provided at the upper end of the operating rod 13, and the engaging piece 14 is provided above the operating rod 13 in the cabinet body 2. A catch member 15 that can be fitted is provided.

Engagement pins 16 are provided on the left side surface of each drawer 4, and three pin guides corresponding to each engagement pin 16 are provided on the operating rod 13 so as to be able to abut the engagement pin 16. 17 are provided. Each pin guide 17 is formed with an inclined groove 17a that allows the engaging pin 16 to pass therethrough, and the inclined groove 17a is formed on the side of the drawer 4. The inclined groove 17a has a corresponding engaging pin when the operating rod 13 is at the upper and lower end positions. 16 extends obliquely from the lower rear end of the pin guide 17 toward the upper front end thereof so that the pin 16 can pass through the inclined groove 17a. Therefore, since the engagement pin 16 can pass through the inclined groove 17a of the pin guide 17 when the operating rod 13 is at the upper end position, one of the drawers 4 can be pulled out from the cabinet body 2.

When one of the drawers 4 is pulled out, when the engagement pin 16 passes through the inclined groove 17a of the pin guide 17 from the rear to the front, it acts on the pin guide 17 to push down the operating rod 13. When the operating rod 13 is pushed down to the lower end position, the other pin guides 17 come into contact with the corresponding engaging pins 16 of the drawer 4, so that the remaining drawers 4 are safely locked in the storage position. It will be.

When the operating rod 13 is at the upper end position, the catch member 15 engages with the engaging piece 14 of the operating rod 13 to hold the operating rod 13 at the upper end position. Such a catch member 15 is the cabinet body 2
However, in this embodiment, the catch member 15 cooperates with the operating rod 13 and a locking mechanism 21 to be described later to perform a locking operation for locking all the drawers 4 in the storage position. It has become.

That is, the catch member 15 is vertically movable between a position for holding the operating rod 13 at the upper end position and a position for holding the operating rod 13 at the lower end position.
When 5 is at the lower end position, the operating rod 13 is held at the lower end position, so that all the drawers 4 cannot be pulled out.

The locking mechanism 21 has a key insertion portion 22, a key rod 23 which is rotated in association with forward and reverse movements of the key insertion portion 22 by a key operation, and one end (left side) of the key rod 23. It has a catch member actuating lever 24 which is fixed and whose tip engages with the catch member 15, and which moves the catch member 15 up and down by the rotation of the key rod 23.

As shown in FIGS. 3 and 4, the catch member 15 includes a catch piece 18 known per se having an engaging hole into which the engaging piece 14 of the operating rod 13 is snap-fitted.
A catch mounting plate 19 for holding the catch piece 18 is provided, and an engaging hole 19a for engaging a pin 25 fixed to the tip of the catch member operating lever 24 is formed in the upper end portion of the catch mounting plate 19. There is.

Further, in this embodiment, the operating rod 13 has a substantially U-shaped cross section, and the lower end of the catch mounting plate 19 is made of a plastic slide slidably engaged with the concave inner surface of the operating rod 13. A guide 20 is attached.
This slide guide 20 plays a role of preventing the generation of noise by smoothly moving the operating rod 13 or the catch mounting plate 19 relative to each other when the operating rod 13 or the catch mounting plate 19 is moved up and down.

As shown in FIGS. 3 and 4, in this embodiment,
An operating rod 2 in which a locking mechanism 21 is vertically installed on the right inner side of the cabinet body 2 so as to face the operating rod 13 and is vertically movable.
6 and a key operating lever 27 which is fixed to the other end (right side) of the key rod 23 and whose front end engages with the operating rod 26 and moves the operating rod 26 up and down according to the rotation of the key rod 23. Have

On the right side surface of each drawer 4, a locking pin 2 is provided.
8 are provided in a protruding manner, and three stoppers 2 corresponding to the respective locking pins 28 and capable of abutting the locking pins 28 on the operating rod 26.
9 are provided. The locking pin 28 of each drawer 4 is in a position where it can pass under the corresponding stopper 29 when the operating rod 26 is at the upper end position of the vertical movement section, and the operating rod 2
When 6 is in the lower end position, it is in a position where it abuts the rear end of the stopper 29.

Here, the operating rod 13 and the operating rod 26 are
The drawers 4 are arranged on one side and the other side of the drawer 4 substantially symmetrically and in good balance, and the key insertion portion 22 is arranged substantially in the center of the front upper portion of the cabinet body 2. The key bar 23 is a square bar and extends substantially horizontally from the vicinity of the upper end of the operating rod 26 to the vicinity of the upper end of the catch member 15, and the key operating tool 30 as a rotary connecting member and the crank at the center thereof. It is connected to the key insertion portion 22 via a pin 31.

As shown in FIG. 5, the key operating tool 30 is rotatably held in a key mounting case 32 fixed to the folded-back portion 5a of the upper wall plate 5 of the cabinet body 2 by a hook portion 33 and a screw 34. Has been done. Further, as shown in FIGS. 3 and 4, the catch member operating lever 24 and the key operating lever 2
7 is a folded-back portion 5a of the upper wall plate 5 of the cabinet body 2.
It is rotatably supported by the guides 35 and 36 fitted in.

FIG. 6 is an exploded perspective view showing a disassembled main part of a safety locking device for a flip-up door in a cabinet which is an embodiment of the present invention, and FIG. 7 is a safety lock for a flip-up door in a cabinet. FIG. 8 is an assembly perspective view showing an assembled main part of the apparatus, FIG. 8 is a cross-sectional view of the main part showing a state where the flip-up door is opened, and FIG. 9 is a cross-sectional view showing the state where the pop-up door is closed and locked. FIG. 10 is a side view of essential parts showing a related state of the lock lever and the engagement / disengagement member in a state in which the pop-up door can be opened, and FIG. It is a principal part side view which shows the related state with a detachment member.

A specific embodiment of the safety locking device of the present invention will be described in detail below. A plurality of stages of drawers 4 housed in the cabinet body 2 so that they can be taken in and out, and each drawer 4
And a flip-up door 3 which covers the front surface of the cabinet and is housed in the cabinet body 2 when opened, and one or more flip-up doors 3
And one of the drawers 4 is pulled out, a safety lock that locks all the other drawers 4 in the closed position so that the other drawers 4 cannot be pulled out, and a safety member of the pop-up door 3 The safety locking device 12 locks the flip-up door in the closed state by pulling out the drawer 4 in the safety locking device 12. The engaging pin 1 is provided on the left side surface of each drawer 4.
6 are projectingly provided, and three pin guides 1 that can abut the engaging pins 16 are provided on the operating rod 13 in correspondence with the engaging pins 16.
7 are provided. A lock lever 7 and an operation restricting member 8 that are operated in a locked state by the operation rod 13, the engagement pin 16, and the pin guide 17 are provided.

Each pin guide 17 is formed with an inclined groove 17a for allowing the engaging pin 16 to pass therethrough. The inclined groove 17a corresponds to the operating rod 13 at the upper and lower end positions. The engagement pin 16 extends obliquely from the lower rear end of the pin guide 17 toward the upper front end thereof so that the engaging pin 16 can pass through the inclined groove 17a. Therefore, since the engagement pin 16 can pass through the inclined groove 17a of the pin guide 17 when the operating rod 13 is at the upper end position, one of the drawers 4 can be pulled out from the cabinet body 2.

When any one of the drawers 4 is pulled out, when the engaging pin 16 passes through the inclined groove 17a of the pin guide 17 from the rear to the front, it acts on the pin guide 17 and pushes down the operating rod 13. When the operating rod 13 is pushed down to the lower end position, the other pin guides 17 come into contact with the corresponding engaging pins 16 of the drawer 4, so that the remaining drawers 4 are safely locked in the storage position. It will be.

When the operating rod 13 in this state is pushed down to the lower end position, the engaging / disengaging member 46 fixed to the operating rod 13 is in the state shown in FIG. The triangular protrusion 38 formed at the other end is pushed, and the lock lever 7 rotates about the engagement pin 10 to move the inner bent piece 41 of the flip-up door,
The locking piece 37 is formed in one end of the lock lever 7, and has a substantially L-shaped locking piece provided with a sloping portion of a profile shape, and the protruding piece 42 of the operation restricting member 8 can be locked.

It is provided with a lock lever 7 for locking and an operation restricting member 8 facing the lock lever 7. A cut-and-raised elastic spring piece 9 formed integrally with the operation restricting member 8 is always biased in the opening direction so that the flip-up door 3 can be opened (see FIG. 8). Further, as can be seen from the exploded perspective view shown in FIG. 6, the lock lever 7 and the operation regulating member 8 are assembled and engaged by the engagement pin 10 and the push nut 11.

The safety locking device 12 engages with an operating rod 13 provided vertically on the cabinet body 2 so as to be vertically movable. The safety locking device 12 will be described in more detail. The lock lever 7 is provided at one end with a substantially L-shape having a profile-like inclined portion so that the door tip can be inserted while copying when the door is accidentally closed. -Shaped locking piece 37 and a triangular protrusion 38 are integrally formed at the other end. Further, a projecting engagement piece 40 having a vertically engaging hole 39 is provided near the triangular projecting portion 38 at the other end.

Next, the operation restricting member 8 and the substantially L-shaped locking piece 37 having the inclined portion of the lock lever 7 at one end sandwich the inner bent piece 41 of the flip-up door 4 with the protruding piece 4.
2, a protruding engagement piece 40 'is formed above and below the other end so as to correspond to the protruding engagement piece 40 of the lock lever 7, and the protruding engagement piece 40' has a protruding engagement piece 40 '. An engaging hole 39 'is provided so as to correspond to the engaging hole 39 formed in the joint piece 40. Further, a cut and raised elastic spring piece 9 is formed substantially in the middle.

The operation regulating member 8 is locked and fixed by a locking member 45 to an appropriate portion of the reinforcing plate 44 on the side wall 43 of the cabinet body 2. As shown in the exploded perspective view of FIG. 6, the lock lever 7 is attached to the fixed operation regulating member 8.
Is assembled, and is rotatably assembled by the engagement pin 10 and the push nut 11. One end of an engagement / disengagement member 46 that engages with the lock lever 7 of the safety locking device 12 is fixed to an actuating rod 13 vertically installed on the cabinet body 2 by a fixture. The engaging / disengaging member 46 is provided with a step.

Further, when the operating rod 13 is not locked by the locking mechanism, the engagement / disengagement member 46 moves in the direction of releasing the lock of the flip-up door 3, and the lock lever 7 is moved from the operation restricting member 8. When the operating lever 13 is released and is moved to a position where all the lifting doors 3 can be opened, and one of the drawers 4 is pulled out, the operating rod 13 is lowered by the operation of the engaging pin 16 and the pin guide 17, and this operating rod is moved. Since the engagement / disengagement member 46 fixed to 13 also descends, the protruding step of the engagement / disengagement member 46 is rotated against the elastic spring piece 9 with the lock lever 7 centered around the engagement pin 10 to operate. As it locks with the protruding piece 40 of the regulating member 8, the other flip-up doors 3 cannot be opened, and at the same time, all the other drawers 4 of the one drawer 4 that have been pulled out are engaged with the engagement pins 16. It is locked by the pin guide 17.

[0033]

According to the present invention, the following effects can be obtained based on the above configuration. (1) With a simple structure, each door can be freely opened, which leads to cost reduction and covers each drawer in multiple stages. When one of the drawers is pulled out, the other drawers cannot be pulled out at the same time. This is a safe thing because the flip-up door cannot be opened.

(2) When one drawer is pulled out and is in a locked state, and when the door is accidentally closed, the tip of the door collides with the tip of the lock lever that is first collided and is inserted. By forming the inclined portion so as to be possible, the deformation of the door can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing a flip-up door type cabinet that is an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the embodiment.

FIG. 3 is a front view showing a main part of the safety locking device of the present embodiment.

FIG. 4 is an exploded perspective view of a main part of the safety locking device of FIG.

FIG. 5 is a sectional view taken along line AA in FIG. 3;

FIG. 6 is an exploded perspective view showing a disassembled main part of a safety locking device for a flip-up door in a cabinet that is an embodiment of the present invention.

FIG. 7 is a perspective view of the essential parts of the safety locking device for the flip-up door in the cabinet according to the embodiment.

FIG. 8 is a lateral cross-sectional view of a main part showing a state in which the flip-up door in the embodiment can be released.

FIG. 9 is a lateral cross-sectional view of a main part showing a closed state of the flip-up door in the embodiment.

FIG. 10 is a side view of essential parts showing a related state of the lock lever and the engagement / disengagement member in a state where the flip-up door can be released in the embodiment.

FIG. 11 is a side view of essential parts showing a related state of the lock lever and the engagement / disengagement member in the closed state of the flip-up door in the embodiment.

[Explanation of symbols] 1 ... Cabinet 2 ... Cabinet main body 3 ... Lifting door 4 ... Drawer 5 ... Upper wall plate 6 ... Storage section 7 ... Lock lever 8 ... Operation restriction member 9 ... Elastic Spring piece 10 ... Engagement pin 11 ... Push nut 12 ... Safety locking device 13 ... Operating rod 14 ... Engagement piece 15 ... Catch member 16 ... Engagement pin 17 ... Pin guide 18 ... Catch piece 19 ... Catch mounting plate 20 ... Slide guide 21 ... Locking mechanism 22 ... Key insertion part 23 ... Key bar 24 ... Catch member operating lever 25 ... Pin 26 ... Operating rod 27 ... Key Actuating lever 28… Locking pin 29… Stopper 30… Key operating tool 31… Crank pin 32… Key mounting case 33… Hook part 34… Screw 35, 36… Guide 37 ・ ・ ・ L
L-shaped locking piece 38 ... Triangular protrusion 39 ... Locking hole 40 ... Projecting engagement piece 41 ... Inner bent piece 42 of flip-up door Projecting piece 43 ... Side wall 44 ... Reinforcement Plate 45 ... Locking tool 46 ... Disengagement member

Claims (2)

[Claims] 1. A plurality of stages of drawers 4 housed in the cabinet body 2 so as to be able to be put in and taken out, and a flip-up door 3 provided so as to cover the front surface of each drawer 4 and be housed in the cabinet body 2 when opened. From the safety lock that locks all the other drawers 4 when one or more of the drawers 3 is opened and one of the drawers 4 is pulled out, and the safety locking device of the above-mentioned drawers 3. In the safety locking device, a lock lever 7 for locking the flip-up door 3 by pulling out any one of the drawers 4 and a side of the cabinet body 2 facing the lock lever 7 are provided. An operation restricting member 8 fixed to the portion reinforcing plate 44 is provided, and the operation restricting member 8 is assembled and engaged with the lock lever 7 so as to be constantly biased in the opening direction by the elastic spring piece 9 provided integrally. , One of the lock levers 7 of the safety locking device An operating rod 1 in which an engaging / disengaging member 46 that engages with an end is vertically installed in the cabinet body 2 so as to be vertically movable
3 is fixed to the operating rod 13, and one of the operating rods 13 is a drawer 4
When the lever is pulled out, the operating rod 13 is lowered by the pin guide 17 having an inclined groove provided in the operating rod 13 and the engaging pin 16, and the engagement / disengagement member 46 attached to the operating rod 13 is attached.
Thus, the lock lever 7 is moved in a direction in which it is locked to the operation restricting member 8 to lock the other flip-up door 3, and a safety lock device for the flip-up door in the cabinet. 2. The safety locking device for a flip-up door in a cabinet according to claim 1, wherein the tip end of the lock lever 7 is an inclined portion so that the door can be inserted while following the door.